Toll of War, an interactive piece on fatalities in the Iraq war since March of 2003.
A couple things of interest here. First, the second tab on the upper-right gives civilian and Iraqi force's fatalities from 4 sources. The spead from those sources is astonishing. The Bush Administration comes in at 30,000 the John Hopkins School of Public Health at 650,000. Click on the blue bars in the graph and you get a pop-up with information on method of counting and links to the sources.
The second thing that strikes me about this piece is that it is a smart repurposing and recontextualization of older NPR stories. On the initial "US Troop Fatalities" when you click on the blue bars in the graph you get pop-ups with stories on events from that time period.